Defense in Depth is a core foundational cybersecurity concept that every cybersecurity and GRC professional should understand.
What Is Defense in Depth?
Defense in Depth refers to the practices, processes, or technologies related to defense in depth within the context of information security and risk management. Understanding defense in depth helps organizations protect their systems, data, and operations from relevant threats.
How It Works
Defense in Depth is applied through a combination of policies, technical controls, and organizational procedures. Security teams implement defense in depth as part of a broader security program aligned to industry frameworks and regulatory requirements.
Why It Matters
Organizations that correctly implement defense in depth reduce their exposure to cyber risk, improve regulatory compliance, and strengthen their overall security posture.
Key Takeaways
- Understand what defense in depth is and how it applies to your organization’s security program.
- Align defense in depth practices to a recognized framework such as NIST CSF, ISO 27001, or CIS Controls.
- Regularly review and test controls related to defense in depth to ensure they remain effective as threats evolve.